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Date: February 04, 1986 10:32
From: KIM::DOWNEND
To: @ALPHAGANG.DIS
During the past couple of weeks, I've been party to a couple of meetings regarding HVAC - Heating, Ventilation and Air Conditioning. Here are some miscellaneous details I've picked up: 1) Only exterior offices with windows have both heating and cooling ducts; interior spaces have cooling only; of course all areas get both indirectly as the system circulates air...(IF it circulates air - see below). 2) Until 2 weeks ago, the entire system was being monitored by an Energy Management System that was supposed to increase overall energy efficiency. The experts determined it was not working properly and turned it off. The noticeble side-effect of this seems to be that thermostats NOW seem to do something when you change the setting. 3) There are apparently a couple of different types of HVAC systems. One type continuously exchanges air in all parts of the building; since the fans are continuously running, this type is energy in-efficient. The other type of HVAC, the one we have, is more or less an "on-demand" system. In other words, if the thermostat says everthing is o.k. the system will slowly shut-down air flow to the point where it is possible to have no air exchange at all. This situation can be avoided or at least minimized by making sure that the rooms with the thermostats are not sealed off from the general working area and working population. 4) Thermostat locations: Alpha Lab has 2: a) in Runner lab controling Runner, Police, TomCat and half the central area. b) In Thrash lab controling Thrash, Relief, Gauntlet and half the central area. Hardwall offices have 1 in Stempler's office controling Paauw, Theurer, Stempler, Salwitz, McCarthy, Ralston, Hally, Downend, Moore, Shepperd, Suttles, Albaugh, and Dawe. Cubicle offices have 1 outside Paauw's office controling cube area. Common Area has 1 outside Downend's office controling Common area and Cyndy's cubicle. Proto Lab has 1 inside Proto lab controling Proto lab. LSI Lab has 1 inside LSI lab controling LSI lab. Dan's Office has 1 inside Dan's office controling Dan's office. Engr. Conf. Room has 1 inside Conf. Rm. Controling Conf. Rm. 5)There is a plan to break the Hardwall office system into 3 thermostat systems with Paauw, Theurer, Stempler, Salwitz, McCarthy on one Thermostat. Ralston, Hally, Downend, Moore on one thermostat. Shepperd, Suttles, Albaugh, Dawe on one thermostat. 6) Remote Override Switches There are huge "40-ton" HVAC units on the roof controling roughly one quarter of the building each. They are shut off at 6:00 PM weeknights until 8:00 AM (I think) the next morning. They are also shut off on weekends. The computers have separate 24-hr/day 2-ton units. If you are here during an "off" period and the air-temp is unbearable you can turn on one of these 40-ton HVAC units by cycling the "remote override" switches located throughout the building. These switches must be turned from "off" to "on" to activate the HVAC unit. SWITCH LOCATIONS: 1)Outside Paauw's office - controls Alpha lab and the the rest of the back quarter of the building. 2)Outside Shepperd's office - controls Alpha Office space and the rest of the front quarter of the building. Once this switch is cycled the HVAC unit will be activated for one hour. PLEASE USE GOOD SENSE WHEN TURNING ON THESE 40-TON UNITS! That's all for now. ---------------------------------------------------------------------------- P.S. RE: Phone System I understand that the front lobby switch board is "shut-down" at 5:00 PM when Evelyn leaves. Therefore, DO NOT expect your unanswered calls to get forwarded to the lobby so you can be paged - after 5:00 PM. Dave S. says they plan to install a "night bell" so that unanswered calls forwarded to the lobby will sound a tone in the Intercom system; then anybody can answer it with the appropriate key strokes on any phone...
Feb 04, 1986